package com.hmall.order.intercpter;

import com.hmall.order.utils.ThreadLocalUtils;
import lombok.extern.slf4j.Slf4j;
import org.springframework.util.StringUtils;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@Slf4j
public class OrderIntercpter implements HandlerInterceptor {
    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
         // 1.获取请求头
//        String s = request.getRequestURL().toString();
//        String[] split = s.split("/");
//        String authorization = split[split.length - 1];
        String authorization = request.getHeader("authorization");
        if(StringUtils.isEmpty(authorization)){
            log.warn("非法用户访问！请求路径：{}", request.getRequestURI() );
            // 没有用户信息，未登录 403 禁止
            response.setStatus(403);
            return false;
        }
        // 2.转换用户id
        Long userId = Long.valueOf(authorization);
        // 3.存入ThreadLocal
        ThreadLocalUtils.setTl(userId);
        // 3.放行
        return true;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
        HandlerInterceptor.super.postHandle(request, response, handler, modelAndView);
    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
//         用完移除id
        ThreadLocalUtils.remove();
    }
}
